Self-assembled polymer phenylethnylcopper nanowires for photoelectrochemical and photocatalytic performance under visible light

Wei, Zhen; Hu, Jisong; Zhu, Kaijian; Wei, Weiqin; Ma, Xinguo; Zhu, Yongfa

doi:10.1016/j.apcatb.2017.12.070

Cited by 55 publications

(25 citation statements)

References 56 publications

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“…Refined Cu‐Cu distances are 2.45–2.65 Å (Table S1), while the Cu‐C distances are 1.64–2.60 Å. The distance between Cu atoms is smaller than the van der Waals radius of copper, which indicates the existence of weak interaction between joint Cu atoms and the formation of coordination bonds between Cu and phenylacetylene [16] . It can be observed that the XRD pattern of P 1 bulges in the 2 θ range of 15–30°, which indicates the existence of amorphous components in P 1 .…”

Section: Resultsmentioning

confidence: 99%

Mechanistic Investigation on Copper–Arylacetylide Polymerization and Sensing Applications

Liang

Chang

et al. 2021

Angew Chem Int Ed

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Exploration of new polymerization reactions is very intriguing in fundamental and practical research, whichw ill advance reaction theories and produce various functional materials.H erein, we report an ew polymerization method based on the reaction of Cu I and arylacetylide,which generates linear polymers with high molecular weight and low polydispersity index of molecular weight. The Cu-arylacetylide polymerization exhibits different characteristics with traditional polymerizations such as mild reaction temperature,a ir atmosphere reaction, high molecular weight, fast polymerization rate,and imprecise molar ratio between monomers.The bond formation path and activation energy of each step was investigated by density functional theory calculations to understand the reaction mechanism. The poly(Cu-arylacetylide)s exhibit strong fluorescence emission and inherent semiconductive properties,w hich have been used to fabricate an electronic device for streptavidin sensing.

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Section: Resultsmentioning

confidence: 99%

Mechanistic Investigation on Copper–Arylacetylide Polymerization and Sensing Applications

Liang

Chang

et al. 2021

Angew Chem Int Ed

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“…As displayed in Figure 8a, the negative photocurrents of PhC 2 Cu and PhC 2 Cu 2.5 indicate they are both p type semiconductors. [ 20 ] Four times higher photocurrent of PhC 2 Cu than that of PhC 2 Cu 2.5 again support more conduction band electrons were generated by PhC 2 Cu under visible light irradiation, which is also indicated by stronger absorption of PhC 2 Cu than PhC 2 Cu 2.5 at the wavelength of 400–500 nm in Figure 4a. This is considered to be the main reason for the preferred O 2 reduction and 2,4‐DCP degradation by PhC 2 Cu.…”

Section: Resultsmentioning

confidence: 69%

“…[4][5][6][7][8] From the view of micro point, efficient adsorption of the pollutant molecules on the surface of semiconductors is a key step during their degradation processes. Considering the preferential adsorption of organic pollutants on organic surfaces, specialized organic and inorganicorganic semiconductors, such as g-C 3 N 4, [8][9][10][11][12][13][14] metal-organic frameworks (MOFs), [15][16][17][18] and some metal-organic coordination polymers [19][20][21][22] were developed for the degradation of these organic pollutants with high toxicity.…”

mentioning

confidence: 99%

“…[19] It showed excellent photocatalytic activity for the degradation of methyl orange (MO), methylene blue (MB), 2,4-dichlorophenol (2,4-DCP), and trichloroacetic acid (TCA) due to its fairly negative conduction band electrons. [19][20][21] Recently, we have also developed Fe-doping strategy to improve the photocatalytic activity of PhC 2 Cu. [22] However, the degradation efficiency is still too low to satisfy the requirement of practical applications.…”

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Structure and photocatalytic performance comparison of two distinctive copper phenylacetylides

Tian

Zhang

et al. 2021

Applied Organom Chemis

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A new copper phenylacetylide of PhC 2 Cu 2.5 was prepared and compared with PhC 2 Cu, a copper-based metal-organic coordination polymer we reported previously. Based on the characterizations on the structures of the two prepared samples, they possessed significantly different crystal structures and similar micro and band structures. Interestingly, they also showed different preferences for the photocatalytic degradation of methyl orange (MO) and 2,4-diclorophenol (2,4-DCP). The active species trap experimental results show that different active species were required for the degradation of MO and 2,4-DCP, resulting to different degradation pathways and mechanism. At last, different preferentially production of active species by PhC 2 Cu 2.5 and PhC 2 Cu were studied by electrochemical measurements and fluorescence spectra, as well as the photocatalytic productions of reactive oxygen species by PhC 2 Cu and PhC 2 Cu 2.5 , which further demonstrated the obtained conclusions by active species trap experimental results. This work developed a new copper phenylacetylide of PhC 2 Cu 2.5 as a photocatalyst and demonstrated the different degradation pathways of MO and 2,4-DCP.

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“…Refined Cu-Cu distances are 2.45-2.65 (Table S1), while the Cu-C distances are 1.64-2.60 .T he distance between Cu atoms is smaller than the van der Waals radius of copper, which indicates the existence of weak interaction between joint Cu atoms and the formation of coordination bonds between Cu and phenylacetylene. [16] It can be observed that the XRD pattern of P1 bulges in the 2q range of 15-308 8, which indicates the existence of amorphous components in P1.Indexing the XRD peak positions of P1 gave triclinic cell parameters,and P1 exhibited alarger unit cell volume than P2 (Table 1). Density functional theory (DFT) calculations were conducted to optimize the crystal structures of P1 and P2 and the corresponding CIF files have been provided in Supporting Information (SI, Data S1 and S2) and TheC ambridge Crystallographic Data Centre (CCDC,2 061812 and 2061813).…”

Section: Angewandte Chemiementioning

confidence: 95%

Mechanistic Investigation on Copper–Arylacetylide Polymerization and Sensing Applications

Liang

Chang

et al. 2021

Angewandte Chemie

View full text Add to dashboard Cite

Exploration of new polymerization reactions is very intriguing in fundamental and practical research, which will advance reaction theories and produce various functional materials. Herein, we report a new polymerization method based on the reaction of CuI and arylacetylide, which generates linear polymers with high molecular weight and low polydispersity index of molecular weight. The Cu–arylacetylide polymerization exhibits different characteristics with traditional polymerizations such as mild reaction temperature, air atmosphere reaction, high molecular weight, fast polymerization rate, and imprecise molar ratio between monomers. The bond formation path and activation energy of each step was investigated by density functional theory calculations to understand the reaction mechanism. The poly(Cu‐arylacetylide)s exhibit strong fluorescence emission and inherent semiconductive properties, which have been used to fabricate an electronic device for streptavidin sensing.

show abstract

Self-assembled polymer phenylethnylcopper nanowires for photoelectrochemical and photocatalytic performance under visible light

Cited by 55 publications

References 56 publications

Mechanistic Investigation on Copper–Arylacetylide Polymerization and Sensing Applications

Mechanistic Investigation on Copper–Arylacetylide Polymerization and Sensing Applications

Structure and photocatalytic performance comparison of two distinctive copper phenylacetylides

Mechanistic Investigation on Copper–Arylacetylide Polymerization and Sensing Applications

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